Abstract: This is a collection of materials related to major California earthquakes of the first half of the 20th century, including
San Francisco, El Centro, Santa Barbara and Eureka, as well as the Helena, Montana earthquake of 1935.

Language: Finding aid is written in
English.

Language of the Material:
Materials are in English.

Repository:
University of California, Los Angeles. Library Special Collections.

Open for research. STORED OFF-SITE AT SRLF. Advance notice is required for access to the collection. Please contact UCLA Library
Special Collections for paging information.

Restrictions on Use and Reproduction

Property rights to the physical object belong to the UC Regents. Literary rights, including copyright, are retained by the
creators and their heirs. It is the responsibility of the researcher to determine who holds the copyright and pursue the copyright
owner or his or her heir for permission to publish where The UC Regents do not hold the copyright.

Processing Note

Processed by Yasmin Damshenas in the Center for Primary Research and Training (CFPRT), with assistance from Lilace Hatayama,
December 2011.

The origin of the collection is unknown. The materials in this collection come from various sources related to architecture
and engineering. H.C. Mathers (1899-1977), whose name is inscribed on the informational book on the San Francisco earthquake
structural damage, was president of the Associated Brick Manufacturers of Southern California. One of the albums with photographs
of the Santa Barbara and Helena earthquakes belonged to Clarence Derrick (1893-1972), a well-known consulting structural engineer,
who is recognized for helping to pioneer shock-resistant design. A set of photographs of the Santa Barbara earthquake in the
collection was originally sent to Professor C. Martin Duke (1917-1988), a Professor of Engineering at UCLA, whose work focused
on earthquake engineering and the structural effects of earthquakes.

Scope and Content

This collection consists primarily of black and white photographs of earthquake damage in California in the cities of San
Francisco, Santa Barbara, and Eureka, as well as Helena, Montana. It also includes an investigative report of building damage
that occurred during the El Centro, California earthquake.

Indexing Terms

The following terms have been used to index the description of this collection in the library's online public access catalog.

Engineering College Administrative Files of C. Martin Duke (Record Series number 52). Library Special Collections, University
Archives, Charles E. Young Research Library, UCLA.

Container List

Box 1, Folder 1

San Francisco earthquake photographs.1906.

Scope and Content Note

Informational book created by Los Angeles-based brick manufacturers, arguing for reliability of brick construction. Note indicates
"property of H.C. Mathers." Mathers was president of Associated Brick Manufacturers of Southern California.

Box 1, Folder 2

El Centro earthquake report.1915.

Scope and Content Note

Copy of "Final Report of Committee of Investigation of Building Conditions After the Earthquake of June 22, 1915 of the City
of El Centro, California, July 6, 1915."

Box 1, Folder 3

Santa Barbara earthquake photographs.1925.

Scope and Content Note

8" by 10" black and white photographs of 1925 Santa Barbara earthquake sent to Professor C. Martin Duke at University of California,
Los Angeles by L.M.K. Boelter on Oct. 13, 1964.

Box 1, Folder 4

Santa Barbara and Helena earthquake photographs.1925 and 1935.

Scope and Content Note

Album once belonging to Clarence Derrick with black and white photographs of 1925 Santa Barbara, California earthquake and
1935 Helena, Montana earthquake. Also includes uncaptioned earthquake photographs.

Box 1, Folder 5

Eureka earthquake photographs.1954.

Scope and Content Note

Photo album with black and white photographs and typescript descriptions.